color code at the end of player id

[cyxui]

I have noticed that on some people's machine player id would have some color code string + some number at the end. specifically the seller field returned by GetTradingHouseSearchResultItemInfo function.

For example @exampleid|c000000;1;14 99|r

I wonder what is causing that?? is it from addon or ZOS? If it is from ZOS is there a function to remove the post fix? if it is from an addon is there a way I can get the original player ID?

Thanks.